f60298d2a10155573de20f38cea6383a5f351fc22457cd4beca531be100dd497

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09-05-2024 04:36

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General

Target

2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe
Size

95KB
MD5

656a799311e020d5dced52fb6ead31eb
SHA1

fdf38c211ab3c81d807e69dc01c780d907e2fcaf
SHA256

f60298d2a10155573de20f38cea6383a5f351fc22457cd4beca531be100dd497
SHA512

a86b6e30ddf343384b47e68cb46cc502fe2e00dc9ba4ffd013925a11b53a06fa03ceb1ae2c62dd2deb65f226199156749b078c8a69cd596486dc5d4808ff7e05
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgRF:V6a+pOtEvwDpjtzP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002327d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002327d-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3068	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 3068	2196	2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe	82
PID 2196 wrote to memory of 3068	2196	2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe	82
PID 2196 wrote to memory of 3068	2196	2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_656a799311e020d5dced52fb6ead31eb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
95KB

MD5
14fd2cdd366bb35c704eb1559f58fae7

SHA1
3ede25e6cc0b44b0f7f40f4dfabfb902975f9cd7

SHA256
8280055895a149a0685a7d5294907da9db05ab86d2df794b67966567f8e282f9

SHA512
7f33d642518be6f2f2bae6f1fb1abadc2483b0c6ca16dd134dc737571bad53ea222605048cb652dbadc02c83e56fcb409c74e4a5e601cf3963f71ff9dca75875

Download Submit
memory/2196-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2196-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2196-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3068-23-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/3068-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download